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    Subject[PATCH AUTOSEL 5.18 24/93] drm/amd/display: Fix monitor flash issue
    Date
    From: Shah Dharati <dharshah@amd.com>

    [ Upstream commit b840b64bc8ed3fc46f6d6aa7f97c43862a33bea5 ]

    [Why & How]
    For a some specific monitors, when connected on boot or hot plug,
    monitor flash for 1/2 seconds can happen during first HDCP query
    operation. Ading some delay in the init sequence for these monitors
    fixes the issue, so it is implemented as monitor specific patch.

    Co-authored-by: Shah Dharati <dharshah@amd.com>
    Reviewed-by: Hansen Dsouza <Hansen.Dsouza@amd.com>
    Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com>
    Acked-by: Hamza Mahfooz <hamza.mahfooz@amd.com>
    Signed-off-by: Shah Dharati <dharshah@amd.com>
    Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
    Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
    Signed-off-by: Sasha Levin <sashal@kernel.org>
    ---
    drivers/gpu/drm/amd/display/modules/hdcp/hdcp2_transition.c | 2 +-
    1 file changed, 1 insertion(+), 1 deletion(-)

    diff --git a/drivers/gpu/drm/amd/display/modules/hdcp/hdcp2_transition.c b/drivers/gpu/drm/amd/display/modules/hdcp/hdcp2_transition.c
    index 1f4095b26409..c5f6c11de7e5 100644
    --- a/drivers/gpu/drm/amd/display/modules/hdcp/hdcp2_transition.c
    +++ b/drivers/gpu/drm/amd/display/modules/hdcp/hdcp2_transition.c
    @@ -524,7 +524,7 @@ enum mod_hdcp_status mod_hdcp_hdcp2_dp_transition(struct mod_hdcp *hdcp,
    set_watchdog_in_ms(hdcp, 3000, output);
    set_state_id(hdcp, output, D2_A6_WAIT_FOR_RX_ID_LIST);
    } else {
    - callback_in_ms(0, output);
    + callback_in_ms(1, output);
    set_state_id(hdcp, output, D2_SEND_CONTENT_STREAM_TYPE);
    }
    break;
    --
    2.35.1
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